On Footnotes:

“Footnotes allow us not only to see the prejudices of old sources, but the biases and convictions of the footnoter himself.They provide readers with the intellectual map that the writer has used to arrive at her conclusions. If some see footnotes as tiresome road blocks, others more fairly view them as serendipitous detours that can lead to delightful and unexpected stops not on the original itinerary. Footnotes gave birth–after an extended gestation, mind you–to the hypertext links that are the vis vitae, the life force, of the Internet.”

From here.